/* ============================================================
   ArabCham — Arab Chamber of Commerce & Industry (Hong Kong)
   Design system: deep emerald ink · ivory · brushed gold
   Inspired by contemporary Levantine hospitality design
   ============================================================ */

:root{
  --bg:        #0d1512;
  --bg-2:      #111b17;
  --panel:     #16231d;
  --panel-2:   #1b2b23;
  --ivory:     #f2ecdf;
  --ivory-dim: #cfc9ba;
  --muted:     #90a098;
  --gold:      #c8a45c;
  --gold-soft: #d9bc7f;
  --gold-deep: #a98443;
  --line:      rgba(200,164,92,.22);
  --line-soft: rgba(242,236,223,.08);
  --shadow:    0 30px 80px rgba(0,0,0,.45);
  --serif:     "Marcellus", "Noto Serif TC", "Amiri", Georgia, "Times New Roman", serif;
  --sans:      "Jost", "Noto Sans TC", "Tajawal", "Helvetica Neue", Arial, sans-serif;
  --ease:      cubic-bezier(.22,.61,.36,1);
}

html[lang="zh-Hant"]{
  --serif: "Noto Serif TC", "Marcellus", serif;
  --sans:  "Noto Sans TC", "Jost", sans-serif;
}
html[lang="ar"]{
  --serif: "Amiri", "Marcellus", serif;
  --sans:  "Tajawal", "Jost", sans-serif;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--ivory);
  font-family:var(--sans);
  font-weight:300;
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
::selection{background:var(--gold);color:var(--bg)}

img{max-width:100%;display:block}
a{color:var(--gold-soft);text-decoration:none;transition:color .3s var(--ease)}
a:hover{color:var(--ivory)}

h1,h2,h3,h4{font-family:var(--serif);font-weight:400;line-height:1.25;color:var(--ivory)}
h1{font-size:clamp(2.4rem,5.5vw,4.4rem);letter-spacing:.01em}
h2{font-size:clamp(1.9rem,3.6vw,2.9rem)}
h3{font-size:1.45rem}
h4{font-size:1.15rem;color:var(--gold-soft)}

.container{width:min(1180px,92vw);margin-inline:auto}
.narrow{width:min(860px,92vw);margin-inline:auto}

/* ---------- kicker / eyebrow ---------- */
.kicker{
  display:inline-flex;align-items:center;gap:.9rem;
  font-size:.72rem;letter-spacing:.42em;text-transform:uppercase;
  color:var(--gold);font-weight:400;
}
.kicker::before{content:"";width:38px;height:1px;background:var(--gold);opacity:.7}
html[lang="ar"] .kicker{letter-spacing:.12em}

/* ============================================================
   HEADER
   ============================================================ */
.site-header{
  position:fixed;inset-inline:0;top:0;z-index:100;
  padding:1.1rem 0;
  transition:background .45s var(--ease), padding .45s var(--ease), box-shadow .45s;
}
.site-header.scrolled{
  background:rgba(13,21,18,.92);
  backdrop-filter:blur(14px);
  padding:.55rem 0;
  box-shadow:0 1px 0 var(--line-soft), 0 18px 45px rgba(0,0,0,.35);
}
.header-inner{display:flex;align-items:center;gap:2rem}
.brand{display:flex;align-items:center;gap:.85rem;color:var(--ivory);white-space:nowrap}
.brand svg{width:46px;height:46px;flex:none}
.brand .b-name{font-family:var(--serif);font-size:1.12rem;letter-spacing:.14em;line-height:1.2}
.brand .b-sub{font-size:.58rem;letter-spacing:.26em;color:var(--gold);text-transform:uppercase;white-space:nowrap}
html[lang="ar"] .brand .b-name{letter-spacing:0}
html[lang="ar"] .brand .b-sub{letter-spacing:.05em}

.main-nav{display:flex;gap:1.45rem;margin-inline-start:auto;align-items:center}
.main-nav > a{
  font-size:.78rem;letter-spacing:.18em;text-transform:uppercase;
  color:var(--ivory-dim);padding:.4rem 0;position:relative;white-space:nowrap;
}
html[lang="ar"] .main-nav > a{letter-spacing:.03em;font-size:.92rem}
html[lang="zh-Hant"] .main-nav > a{letter-spacing:.28em;}
.main-nav > a::after{
  content:"";position:absolute;bottom:0;inset-inline-start:0;width:0;height:1px;
  background:var(--gold);transition:width .35s var(--ease);
}
.main-nav > a:hover,.main-nav > a.active{color:var(--ivory)}
.main-nav > a:hover::after,.main-nav > a.active::after{width:100%}

.lang-switch{display:flex;align-items:center;gap:.5rem;font-size:.78rem;color:var(--muted);white-space:nowrap;flex:none}
.lang-switch a{color:var(--muted);letter-spacing:.08em}
.lang-switch a.on{color:var(--gold)}
.lang-switch span{color:var(--line)}

.burger{
  display:block;background:none;border:none;cursor:pointer;z-index:130;
  width:40px;height:40px;position:relative;flex:none;
}
.burger span{
  position:absolute;inset-inline-start:7px;width:26px;height:1.5px;background:var(--ivory);
  transition:all .4s var(--ease);
}
.burger span:nth-child(1){top:13px}
.burger span:nth-child(2){top:20px}
.burger span:nth-child(3){top:27px}
body.menu-open .burger span:nth-child(1){top:20px;transform:rotate(45deg)}
body.menu-open .burger span:nth-child(2){opacity:0}
body.menu-open .burger span:nth-child(3){top:20px;transform:rotate(-45deg)}

/* ---------- full-screen overlay menu ---------- */
.overlay-menu{
  position:fixed;inset:0;z-index:120;background:#0c1310;
  display:flex;flex-direction:column;justify-content:center;
  opacity:0;visibility:hidden;transition:opacity .5s var(--ease),visibility .5s;
  overflow-y:auto;padding:6rem 0 3rem;isolation:isolate;
}
.overlay-menu::before{
  content:"";position:absolute;inset:0;z-index:-1;opacity:.04;
  background-image:var(--pattern);background-size:170px;
}
body.menu-open .overlay-menu{opacity:1;visibility:visible}
.overlay-menu .om-grid{
  width:min(1050px,88vw);margin-inline:auto;
  display:grid;grid-template-columns:1.2fr 1fr;gap:3rem;
}
.om-primary a{
  display:block;font-family:var(--serif);font-size:clamp(1.6rem,3.4vw,2.5rem);
  color:var(--ivory-dim);padding:.34rem 0;line-height:1.3;
  transform:translateY(18px);opacity:0;transition:all .5s var(--ease);
}
body.menu-open .om-primary a{transform:none;opacity:1}
.om-primary a:hover{color:var(--gold-soft)}
.om-secondary{border-inline-start:1px solid var(--line-soft);padding-inline-start:3rem}
.om-secondary h5{
  font-size:.68rem;letter-spacing:.4em;text-transform:uppercase;color:var(--gold);
  margin:1.4rem 0 .6rem;font-weight:400;
}
html[lang="ar"] .om-secondary h5{letter-spacing:.08em}
.om-secondary a{display:block;color:var(--muted);font-size:.95rem;padding:.16rem 0}
.om-secondary a:hover{color:var(--ivory)}

/* ============================================================
   HERO
   ============================================================ */
.hero{
  position:relative;min-height:100vh;display:flex;align-items:center;
  isolation:isolate;overflow:hidden;
  background:
    radial-gradient(1200px 700px at 75% -10%, rgba(200,164,92,.14), transparent 60%),
    radial-gradient(900px 600px at 10% 110%, rgba(27,43,35,.9), transparent 65%),
    linear-gradient(160deg,#101b16 0%, #0d1512 55%, #0b110e 100%);
}
.hero::before{ /* geometric lattice */
  content:"";position:absolute;inset:-50%;z-index:-1;opacity:.05;
  background-image:var(--pattern);
  background-size:170px;
  animation:drift 90s linear infinite;
}
@keyframes drift{to{transform:translate3d(170px,170px,0)}}
.hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(13,21,18,.25) 0%,transparent 35%,rgba(13,21,18,.85) 100%);
}
.hero-inner{padding:9rem 0 6rem}
.hero .kicker{margin-bottom:1.6rem}
.hero h1{max-width:14em}
.hero .lede{
  max-width:36em;margin-top:1.6rem;color:var(--ivory-dim);
  font-size:clamp(1rem,1.4vw,1.18rem);font-weight:300;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:1.1rem;margin-top:2.8rem}

.anniv{
  display:inline-flex;align-items:baseline;gap:.7rem;margin-top:2.6rem;
  color:var(--gold-soft);font-family:var(--serif);font-size:1.05rem;letter-spacing:.06em;
  border-top:1px solid var(--line);padding-top:1.2rem;
}
.anniv strong{font-size:1.9rem;color:var(--gold)}

.scroll-cue{
  position:absolute;bottom:2.2rem;inset-inline-start:50%;transform:translateX(-50%);
  width:1px;height:64px;background:var(--line);overflow:hidden;
}
html[lang="ar"] .scroll-cue{transform:translateX(50%)}
.scroll-cue::after{
  content:"";position:absolute;top:-40%;inset-inline-start:0;width:100%;height:40%;
  background:var(--gold);animation:cue 2.2s var(--ease) infinite;
}
@keyframes cue{to{top:110%}}

/* page hero (inner pages) */
.page-hero{
  position:relative;padding:11rem 0 4.5rem;isolation:isolate;overflow:hidden;
  background:
    radial-gradient(900px 480px at 80% -20%, rgba(200,164,92,.13), transparent 60%),
    linear-gradient(160deg,#101b16, #0d1512 70%);
}
.page-hero::before{
  content:"";position:absolute;inset:-50%;z-index:-1;opacity:.045;
  background-image:var(--pattern);background-size:170px;
}
.page-hero h1{margin-top:1.2rem}
.page-hero .lede{max-width:44em;margin-top:1.2rem;color:var(--ivory-dim)}
.breadcrumb{font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--gold-soft)}
html[lang="ar"] .breadcrumb{letter-spacing:.02em}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn{
  display:inline-flex;align-items:center;gap:.8rem;cursor:pointer;
  padding:1rem 2.3rem;border:1px solid var(--gold);
  font-family:var(--sans);font-size:.78rem;letter-spacing:.26em;text-transform:uppercase;
  color:var(--gold-soft);background:transparent;position:relative;overflow:hidden;
  transition:color .4s var(--ease);isolation:isolate;
}
html[lang="ar"] .btn{letter-spacing:.05em;font-size:.95rem}
.btn::before{
  content:"";position:absolute;inset:0;z-index:-1;background:var(--gold);
  transform:scaleX(0);transform-origin:0 50%;transition:transform .45s var(--ease);
}
.btn:hover{color:#171307}
.btn:hover::before{transform:scaleX(1)}
.btn.solid{background:var(--gold);color:#171307}
.btn.solid:hover{color:#171307;filter:brightness(1.08)}
.btn.ghost{border-color:var(--line-soft);color:var(--ivory-dim)}
.btn.ghost::before{background:var(--ivory)}
.btn.ghost:hover{color:#171307}

/* ============================================================
   SECTIONS
   ============================================================ */
section{padding:6.5rem 0}
section.tight{padding:4rem 0}
.sec-head{margin-bottom:3.4rem;max-width:46em}
.sec-head h2{margin-top:1.1rem}
.sec-head .sub{color:var(--muted);margin-top:1rem;max-width:40em}

.band{background:var(--bg-2);border-block:1px solid var(--line-soft)}
.band-panel{background:var(--panel)}

/* credibility strip */
.cred{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line-soft);
  border:1px solid var(--line-soft);
}
.cred > div{background:var(--bg);padding:2.2rem 1.8rem;text-align:center}
.cred .num{font-family:var(--serif);font-size:2.3rem;color:var(--gold);line-height:1.1}
.cred .lbl{font-size:.72rem;letter-spacing:.22em;text-transform:uppercase;color:var(--muted);margin-top:.6rem}
html[lang="ar"] .cred .lbl{letter-spacing:.03em;font-size:.85rem}

.ecosoc{
  display:flex;align-items:center;gap:1.6rem;justify-content:center;
  margin-top:2.6rem;padding:1.4rem 2rem;border:1px solid var(--line);
  background:linear-gradient(90deg,transparent, rgba(200,164,92,.07), transparent);
}
.ecosoc svg{width:52px;height:52px;flex:none}
.ecosoc p{font-family:var(--serif);font-size:1.08rem;color:var(--gold-soft);letter-spacing:.04em}

/* ---------- cards ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:1.6rem}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:1.6rem}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:1.4rem}

.card{
  background:var(--panel);border:1px solid var(--line-soft);
  padding:2.4rem 2.1rem;position:relative;overflow:hidden;
  transition:transform .5s var(--ease), border-color .5s, background .5s;
}
.card:hover{transform:translateY(-6px);border-color:var(--line);background:var(--panel-2)}
.card .c-num{
  font-family:var(--serif);font-size:.95rem;color:var(--gold);
  letter-spacing:.2em;margin-bottom:1.2rem;display:block;
}
.card h3{margin-bottom:.8rem}
.card p{color:var(--muted);font-size:.97rem}
.card .more{
  display:inline-block;margin-top:1.4rem;font-size:.74rem;letter-spacing:.24em;
  text-transform:uppercase;color:var(--gold-soft);
}
html[lang="ar"] .card .more{letter-spacing:.04em}

/* division cards */
.div-card{
  position:relative;min-height:300px;display:flex;flex-direction:column;justify-content:flex-end;
  padding:2.2rem;background:
    linear-gradient(180deg, rgba(22,35,29,.2), rgba(13,21,18,.94)),
    var(--panel-2);
  border:1px solid var(--line-soft);overflow:hidden;isolation:isolate;
  transition:transform .5s var(--ease), border-color .5s;
}
.div-card::before{
  content:"";position:absolute;inset:0;z-index:-1;opacity:.07;
  background-image:var(--pattern);background-size:130px;
  transition:opacity .6s, transform .8s var(--ease);
}
.div-card:hover{transform:translateY(-6px);border-color:var(--line)}
.div-card:hover::before{opacity:.14;transform:scale(1.06)}
.div-card .d-mark{font-family:var(--serif);font-size:2.5rem;color:var(--gold);opacity:.9;line-height:1}
.div-card h3{margin-top:auto;padding-top:2.2rem;font-size:1.3rem}
.div-card p{color:var(--muted);font-size:.92rem;margin-top:.5rem}
.div-card .ext{position:absolute;top:1.5rem;inset-inline-end:1.5rem;color:var(--muted);font-size:.8rem}

/* news cards */
.news-card{
  background:var(--panel);border:1px solid var(--line-soft);padding:2rem 1.9rem;
  display:flex;flex-direction:column;transition:transform .5s var(--ease),border-color .5s;
}
.news-card:hover{transform:translateY(-6px);border-color:var(--line)}
.news-card time{font-size:.74rem;letter-spacing:.26em;text-transform:uppercase;color:var(--gold)}
html[lang="ar"] .news-card time{letter-spacing:.04em}
.news-card h3{font-size:1.08rem;margin-top:1rem;line-height:1.5}
.news-card p{color:var(--muted);font-size:.92rem;margin-top:.8rem}
.news-card .tag{
  align-self:flex-start;margin-top:auto;padding-top:1.4rem;
  font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);
}

/* ---------- prose (long-form inner content) ---------- */
.prose{color:var(--ivory-dim)}
.prose > * + *{margin-top:1.25rem}
.prose h2{margin-top:3.4rem;padding-top:2.6rem;border-top:1px solid var(--line-soft)}
.prose h2:first-child{margin-top:0;padding-top:0;border:none}
.prose h3{margin-top:2.4rem;color:var(--gold-soft)}
.prose h4{margin-top:1.8rem}
.prose ul,.prose ol{padding-inline-start:1.3rem}
.prose li{margin-top:.45rem}
.prose li::marker{color:var(--gold)}
.prose blockquote{
  border-inline-start:2px solid var(--gold);padding:1rem 1.6rem;background:var(--panel);
  font-family:var(--serif);font-size:1.12rem;color:var(--ivory);
}
.prose strong{color:var(--ivory);font-weight:500}

/* tables */
.tbl-wrap{overflow-x:auto;border:1px solid var(--line-soft)}
table{width:100%;border-collapse:collapse;font-size:.94rem;min-width:640px}
th{
  background:var(--panel-2);font-family:var(--serif);font-weight:400;color:var(--gold-soft);
  text-align:start;padding:1rem 1.2rem;font-size:.95rem;letter-spacing:.05em;white-space:nowrap;
}
td{padding:.95rem 1.2rem;border-top:1px solid var(--line-soft);color:var(--ivory-dim)}
tr:hover td{background:rgba(200,164,92,.04)}

/* accordion */
details{
  border:1px solid var(--line-soft);background:var(--panel);
  margin-top:.9rem;transition:background .4s;
}
details[open]{background:var(--panel-2);border-color:var(--line)}
summary{
  cursor:pointer;list-style:none;display:flex;align-items:center;gap:1.2rem;
  padding:1.35rem 1.6rem;font-family:var(--serif);font-size:1.06rem;color:var(--ivory);
}
summary::-webkit-details-marker{display:none}
summary::after{
  content:"+";margin-inline-start:auto;font-family:var(--sans);font-weight:300;
  font-size:1.5rem;color:var(--gold);transition:transform .4s var(--ease);flex:none;
}
details[open] summary::after{transform:rotate(45deg)}
details .d-body{padding:0 1.6rem 1.5rem;color:var(--muted)}
details .d-body > * + *{margin-top:.9rem}

/* event list */
.event{
  display:grid;grid-template-columns:120px 1fr auto;gap:2rem;align-items:center;
  padding:1.7rem 0;border-bottom:1px solid var(--line-soft);
}
.event:first-child{border-top:1px solid var(--line-soft)}
.event .e-date{text-align:center;border-inline-end:1px solid var(--line-soft);padding-inline-end:1.6rem}
.event .e-date .d{font-family:var(--serif);font-size:2rem;color:var(--gold);line-height:1}
.event .e-date .m{font-size:.72rem;letter-spacing:.3em;text-transform:uppercase;color:var(--muted);margin-top:.4rem}
html[lang="ar"] .event .e-date .m{letter-spacing:.04em}
.event h3{font-size:1.15rem}
.event p{color:var(--muted);font-size:.92rem;margin-top:.35rem}
.event .e-loc{font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;color:var(--gold-soft);white-space:nowrap}
html[lang="ar"] .event .e-loc{letter-spacing:.02em}
.badge{
  display:inline-block;font-size:.66rem;letter-spacing:.2em;text-transform:uppercase;
  border:1px solid var(--line);color:var(--gold);padding:.2rem .7rem;margin-inline-start:.8rem;
  vertical-align:middle;
}
html[lang="ar"] .badge{letter-spacing:.02em}

/* link directory */
.dir-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:.9rem 2.4rem}
.dir-grid a{
  display:flex;justify-content:space-between;gap:1rem;align-items:baseline;
  padding:.8rem .4rem;border-bottom:1px solid var(--line-soft);color:var(--ivory-dim);font-size:.95rem;
}
.dir-grid a:hover{color:var(--gold-soft);border-color:var(--line)}
.dir-grid .cc{font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);white-space:nowrap}

/* forms */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.3rem}
.form-grid .full{grid-column:1/-1}
label{display:block;font-size:.72rem;letter-spacing:.24em;text-transform:uppercase;color:var(--muted);margin-bottom:.55rem}
html[lang="ar"] label{letter-spacing:.03em;font-size:.85rem}
input,select,textarea{
  width:100%;background:var(--bg);border:1px solid var(--line-soft);color:var(--ivory);
  padding:.95rem 1.1rem;font-family:var(--sans);font-size:.98rem;font-weight:300;
  transition:border-color .3s;
}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--gold)}
textarea{min-height:150px;resize:vertical}
.form-note{font-size:.85rem;color:var(--muted)}

.notice{
  border:1px solid var(--line);background:rgba(200,164,92,.06);
  padding:1.3rem 1.6rem;font-size:.92rem;color:var(--ivory-dim);
}
.notice strong{color:var(--gold-soft)}

/* contact blocks */
.contact-line{display:flex;gap:1.3rem;padding:1.15rem 0;border-bottom:1px solid var(--line-soft);align-items:baseline}
.contact-line .cl-k{flex:0 0 130px;font-size:.72rem;letter-spacing:.24em;text-transform:uppercase;color:var(--gold)}
html[lang="ar"] .contact-line .cl-k{letter-spacing:.03em;font-size:.85rem}
.contact-line .cl-v{color:var(--ivory-dim)}

/* ============================================================
   FOOTER
   ============================================================ */
footer{
  background:#0a100d;border-top:1px solid var(--line-soft);
  padding:5rem 0 2.4rem;margin-top:0;
}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:3rem}
.foot-grid h5{
  font-size:.7rem;letter-spacing:.36em;text-transform:uppercase;color:var(--gold);
  font-weight:400;margin-bottom:1.3rem;
}
html[lang="ar"] .foot-grid h5{letter-spacing:.06em;font-size:.85rem}
.foot-grid a,.foot-grid p{display:block;color:var(--muted);font-size:.92rem;padding:.22rem 0}
.foot-grid a:hover{color:var(--gold-soft)}
.foot-brand{display:flex;align-items:center;gap:.8rem;margin-bottom:1.2rem}
.foot-brand svg{width:40px;height:40px}
.foot-brand .b-name{font-family:var(--serif);letter-spacing:.12em}
html[lang="ar"] .foot-brand .b-name{letter-spacing:0}
.foot-eco{margin-top:1.4rem;padding-top:1.4rem;border-top:1px solid var(--line-soft);font-size:.85rem;color:var(--muted);max-width:30em}
.foot-eco em{color:var(--gold-soft);font-style:normal}
.foot-bottom{
  margin-top:3.6rem;padding-top:1.8rem;border-top:1px solid var(--line-soft);
  display:flex;flex-wrap:wrap;gap:1rem 2.4rem;align-items:center;
  font-size:.8rem;color:var(--muted);
}
.foot-bottom .links{margin-inline-start:auto;display:flex;gap:1.8rem}
.foot-bottom a{color:var(--muted)}
.foot-bottom a:hover{color:var(--gold-soft)}

/* ---------- reveal on scroll ---------- */
.rv{opacity:0;transform:translateY(26px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .rv{opacity:1;transform:none;transition:none}
  .hero::before{animation:none}
}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .main-nav{display:none}
  .burger{margin-inline-start:auto}
  .header-inner .lang-switch{display:none}
  .overlay-menu .lang-switch{display:flex;justify-content:center;margin-top:2.5rem;font-size:1rem}
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .cred{grid-template-columns:repeat(2,1fr)}
}
@media (min-width:1081px){
  .overlay-menu .lang-switch{display:none}
}
@media (max-width:640px){
  body{font-size:16px}
  .header-inner{gap:1rem}
  .brand .b-sub{display:none}
  .brand svg{width:38px;height:38px}
  .grid-2,.grid-3,.grid-4,.dir-grid,.form-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .om-grid{grid-template-columns:1fr}
  .om-secondary{border:none;padding-inline-start:0}
  .event{grid-template-columns:86px 1fr;gap:1.2rem}
  .event .e-loc{grid-column:2;justify-self:start}
  section{padding:4.5rem 0}
  .hero-inner{padding:8rem 0 5rem}
  .brand .b-name{font-size:.95rem}
  .cred{grid-template-columns:1fr 1fr}
  .ecosoc{flex-direction:column;text-align:center;gap:.9rem}
}

/* RTL fine-tuning */
html[dir="rtl"] body{font-weight:400}
html[dir="rtl"] .btn::before{transform-origin:100% 50%}

/* pattern asset */
:root{--pattern:url("../img/pattern.svg")}

/* ============================================================
   ARAB WORLD HISTORY — animated historical map
   ============================================================ */
.history-band{position:relative;overflow:hidden}
.ha-tri{font-family:var(--serif);color:var(--ivory-dim);font-size:1.02rem;letter-spacing:.04em;margin-top:.9rem}
.ha-tri span{color:var(--line);padding-inline:.55rem}

.hm-stage{margin-top:2.6rem}
.hm-canvas{
  position:relative;border:1px solid var(--line-soft);background:#0a1a20;
  box-shadow:0 30px 80px rgba(0,0,0,.35);
}
.hm-canvas svg{display:block;width:100%;height:auto;direction:ltr}
.hm-layer{opacity:0;transition:opacity 1.4s var(--ease)}
.hm-layer.on{opacity:1}
.hm-arc{stroke:var(--gold);stroke-width:1.6;fill:none;stroke-dasharray:6 7;opacity:0;transition:opacity .8s}
.hm-arc.on{opacity:.9;animation:hm-dash 1.6s linear infinite}
@keyframes hm-dash{to{stroke-dashoffset:-26}}
.hm-hk{opacity:0;transition:opacity .8s}
.hm-hk.on{opacity:1}
.hm-hk text{fill:var(--gold-soft);font-family:var(--sans);font-size:15px;letter-spacing:.16em}
.hm-hk rect{fill:none;stroke:var(--gold);stroke-width:1.4}

.hm-label{
  position:absolute;top:1.2rem;inset-inline-start:1.4rem;max-width:60%;
  pointer-events:none;
}
.hm-name{
  font-family:var(--serif);font-size:clamp(1.2rem,2.4vw,1.9rem);color:var(--ivory);
  text-shadow:0 2px 18px rgba(0,0,0,.8);line-height:1.25;
}
.hm-yearchip{
  position:absolute;bottom:1.1rem;inset-inline-start:1.4rem;
  font-family:var(--serif);font-size:clamp(1.1rem,2vw,1.6rem);color:var(--gold);
  background:rgba(10,20,17,.72);border:1px solid var(--line);
  padding:.25rem 1rem;letter-spacing:.06em;direction:ltr;
  min-width:7.5em;text-align:center;font-variant-numeric:tabular-nums;
}
.hm-controls{
  position:absolute;bottom:1.1rem;inset-inline-end:1.2rem;display:flex;gap:.55rem;
}
.hm-controls button{
  width:44px;height:44px;cursor:pointer;background:rgba(10,20,17,.72);
  border:1px solid var(--line);color:var(--gold-soft);display:flex;
  align-items:center;justify-content:center;transition:border-color .3s,color .3s;
}
.hm-controls button:hover{border-color:var(--gold);color:var(--ivory)}
.hm-controls svg{width:16px;height:16px;fill:currentColor}
.hm-play .i-pause{display:none}
.history-map.playing .hm-play .i-pause{display:block}
.history-map.playing .hm-play .i-play{display:none}

.hm-timeline{
  position:relative;height:26px;margin-top:1.1rem;cursor:pointer;
  background:linear-gradient(180deg,transparent 12px,var(--line-soft) 12px,var(--line-soft) 13px,transparent 13px);
}
.hm-tprog{
  position:absolute;top:12px;inset-inline-start:0;height:1px;background:var(--gold);
  width:0;pointer-events:none;
}
.hm-tick{
  position:absolute;top:8px;width:9px;height:9px;padding:0;transform:rotate(45deg);
  background:var(--bg);border:1px solid var(--line);cursor:pointer;transition:background .4s;
}
.hm-tick.on{background:var(--gold)}
.hm-caption{
  color:var(--muted);font-size:.97rem;margin-top:1.1rem;min-height:3.2em;max-width:56em;
}
@media (max-width:640px){
  .hm-label{max-width:70%}
  .hm-yearchip{font-size:.95rem;min-width:6.5em;padding:.2rem .6rem}
  .hm-controls button{width:38px;height:38px}
}
@media (prefers-reduced-motion:reduce){
  .hm-arc.on{animation:none}
  .hm-layer{transition:none}
}

/* ============================================================
   HOMEPAGE — hero photo slideshow + gallery strip
   ============================================================ */
.hero-slides{position:absolute;inset:0;z-index:-3;overflow:hidden}
.hero-slides .slide{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:0;transform:scale(1);animation:hero-slide 21s linear infinite;
}
.hero-slides .slide:nth-child(2){animation-delay:7s}
.hero-slides .slide:nth-child(3){animation-delay:14s}
@keyframes hero-slide{
  0%{opacity:0;transform:scale(1.02)}
  4%{opacity:1}
  33.3%{opacity:1;transform:scale(1.075)}
  40%{opacity:0;transform:scale(1.09)}
  100%{opacity:0}
}
.hero-slides::after{ /* tint so text stays legible */
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(13,21,18,.72) 0%,rgba(13,21,18,.55) 45%,rgba(13,21,18,.94) 100%);
}
.hero .anniv-badge{
  display:block;height:clamp(96px,12vw,150px);width:auto;
  mix-blend-mode:screen;margin-top:2.4rem;
}
@media (prefers-reduced-motion:reduce){
  .hero-slides .slide{animation:none;opacity:0}
  .hero-slides .slide:first-child{opacity:1}
}

.gallery-strip{padding:0;border-block:1px solid var(--line-soft);background:var(--bg-2)}
.gallery-strip .g-grid{
  display:grid;grid-template-columns:repeat(6,1fr);gap:1px;background:var(--line-soft);
}
.g-tile{
  position:relative;display:block;overflow:hidden;height:240px;background:var(--panel);
}
.g-tile img{
  width:100%;height:100%;object-fit:cover;display:block;
  transition:transform .8s var(--ease),opacity .8s;
}
.g-tile:hover img{transform:scale(1.06)}
.g-tile.contain img{object-fit:contain;padding:1.4rem}
.g-tile.light{background:#f2ecdf}
.g-tile.navy{background:#0d1420}
.g-tile .g-cap{
  position:absolute;inset-inline:0;bottom:0;padding:.55rem .9rem;
  font-size:.66rem;letter-spacing:.24em;text-transform:uppercase;color:var(--gold-soft);
  background:linear-gradient(180deg,transparent,rgba(10,16,13,.85));
  opacity:0;transition:opacity .5s;
}
html[lang="ar"] .g-tile .g-cap{letter-spacing:.03em;font-size:.8rem}
.g-tile:hover .g-cap{opacity:1}
@media (max-width:1080px){.gallery-strip .g-grid{grid-template-columns:repeat(3,1fr)}}
@media (max-width:640px){.gallery-strip .g-grid{grid-template-columns:repeat(2,1fr)}.g-tile{height:190px}}